50JA12H

No. 50 - 5/8" Pitch - Single - QD Bushed Sprocket

Item #100804224

2.708 in Outside Diameter

JA Bushing Series

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Product Details

Hardened teeth on the smaller sprocket of a roller chain drive are recommended if the drive ratio is four to one or greater or if the smaller sprocket has 24 teeth or less and is running at a speed of over 600 rpm.

Hardened teeth sprockets afford longer chain and sprocket life
Tolerances meet or exceed ANSI standards
Manufactured of high carbon steel
Precise machining and processes ensure consistent finish and high quality
Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
Bores are concentric to pitch line, minimizing run out
Interchangeable with other manufacturers’ QD bushings
Stocked Heat Treat

Specifications

Sprocket Style	B
Chain No.	50
Tooth Width	0.343 in
Hub Dia.	2 in
Material	Steel
Length Through Bore	5/8 in
Bushing Type	QD
Hardened Teeth	With Hardened Teeth
Bore Type	Bushed
Bushing Bore [Max]	1 1/4 in
Width Across Teeth	0.343 in
Pitch Diameter	2.415 in
Overall Length	5/8 in
Chain Pitch	5/8 in
Screw Size	#10-24 UNC
Hub OD @ Recess	1.825 in
Martin No.	50JA12H
Overall Length Less Threads	N/A
Single Strand Tooth Thickness	0.343 in
Type	B
No. of Strands Across	1
No. of Teeth	12
Caliper Diameter	2.0148 in
Hub Projection	0.28 in
Bushing Bore [Min]	1/2 in
Hub Recess Width	0.165 in
Hub Length	0.28 in
Hub Recess Depth	0.0875 in
Outside Dia. [Min]	2.7080 in
Inch/Metric	Inch
Outside Dia.	2.7080 in
Bushing Series	JA
Weight	0.34 LB
EAN or UPC	697950041735